Background Audio Recorder Pro is an Android app developed by Arbel Solutions that allows you to record MP3 files in the background while your phone display is closed. This app is perfect for those who want to record lectures, meetings, or any other audio without having to keep their phones awake.

You can start recording in two ways - by pressing the big red button or by starting the service from the widget and using your volume buttons to start and stop recording. The app also features a baby monitor function that allows you to monitor your baby remotely. To use this feature, you need to scan the QR code on the website, press "start" on the website, and then press "start" on your phone.

Another useful feature of this app is the audio detection function that starts recording every time it gets noisy and resumes recording once the maximum recording time is over. You can also play, share, and delete recorded files in the audio gallery. The app also includes a tutorial video that guides you on how to use it effectively.